Year	metric tons per capita
1990	0.47166464612812375
1991	0.47911077041011885
1992	0.4893636818292839
1993	0.5007258123732653
1994	0.5212548524711595
1995	0.5248021663748138
1996	0.5335833749925531
1997	0.5374637954917516
1998	0.5402491761506327
1999	0.5440940392959457
2000	0.5474698705515166
2001	0.5581353103463936
2002	0.5714792794391694
2003	0.583024006105599
2004	0.6068442192948059
2005	0.6107949246195744
2006	0.6160954948016943
2007	0.6216571314199426
2008	0.6263553752802805
2009	0.6318286276151738
2010	0.6343519728198315
2011	0.6427424641651661
2012	0.6263176712818553
2013	0.6679659663613026
2014	0.5703285206110065
2015	0.4963601344954787
2016	0.4746044432273739
2017	0.4583350164845238
2018	0.4564284511618523
2019	0.45156023840247234
2020	0.32306554917526414